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De-Bogonising New Address Blocks Report for APNIC - 20060721

Previous day's report | Next day's report

Summary

All ASes
121.50.0.0/21 is seen by 70 out of 86 ASes (81 %)
121.100.0.0/20 is seen by 70 out of 86 ASes (81 %)
121.200.0.0/19 is seen by 70 out of 86 ASes (81 %)
121.255.0.0/16 is seen by 70 out of 86 ASes (81 %)
122.0.0.0/24 is seen by 70 out of 86 ASes (81 %)
122.50.0.0/21 is seen by 70 out of 86 ASes (81 %)
122.100.0.0/20 is seen by 70 out of 86 ASes (81 %)
122.200.0.0/19 is seen by 70 out of 86 ASes (81 %)
122.255.0.0/16 is seen by 70 out of 86 ASes (81 %)
123.0.0.0/24 is seen by 70 out of 86 ASes (81 %)
123.50.0.0/21 is seen by 70 out of 86 ASes (81 %)
123.100.0.0/20 is seen by 70 out of 86 ASes (81 %)
123.200.0.0/19 is seen by 70 out of 86 ASes (81 %)
123.255.0.0/16 is seen by 70 out of 86 ASes (81 %)
193.0.0.0/21 is seen by 70 out of 86 ASes (81 %)
84.205.83.0/24 is seen by 73 out of 86 ASes (84 %)
Baseline 193.0.0.0/21
121.50.0.0/21 is seen by 60 out of 70 ASes (85 %)
121.100.0.0/20 is seen by 60 out of 70 ASes (85 %)
121.200.0.0/19 is seen by 60 out of 70 ASes (85 %)
121.255.0.0/16 is seen by 60 out of 70 ASes (85 %)
122.0.0.0/24 is seen by 60 out of 70 ASes (85 %)
122.50.0.0/21 is seen by 60 out of 70 ASes (85 %)
122.100.0.0/20 is seen by 60 out of 70 ASes (85 %)
122.200.0.0/19 is seen by 60 out of 70 ASes (85 %)
122.255.0.0/16 is seen by 60 out of 70 ASes (85 %)
123.0.0.0/24 is seen by 60 out of 70 ASes (85 %)
123.50.0.0/21 is seen by 60 out of 70 ASes (85 %)
123.100.0.0/20 is seen by 60 out of 70 ASes (85 %)
123.200.0.0/19 is seen by 60 out of 70 ASes (85 %)
123.255.0.0/16 is seen by 60 out of 70 ASes (85 %)
84.205.83.0/24 is seen by 59 out of 70 ASes (84 %)
Baseline 84.205.83.0/24
121.50.0.0/21 is seen by 64 out of 73 ASes (87 %)
121.100.0.0/20 is seen by 64 out of 73 ASes (87 %)
121.200.0.0/19 is seen by 64 out of 73 ASes (87 %)
121.255.0.0/16 is seen by 64 out of 73 ASes (87 %)
122.0.0.0/24 is seen by 64 out of 73 ASes (87 %)
122.50.0.0/21 is seen by 64 out of 73 ASes (87 %)
122.100.0.0/20 is seen by 64 out of 73 ASes (87 %)
122.200.0.0/19 is seen by 64 out of 73 ASes (87 %)
122.255.0.0/16 is seen by 64 out of 73 ASes (87 %)
123.0.0.0/24 is seen by 64 out of 73 ASes (87 %)
123.50.0.0/21 is seen by 64 out of 73 ASes (87 %)
123.100.0.0/20 is seen by 64 out of 73 ASes (87 %)
123.200.0.0/19 is seen by 64 out of 73 ASes (87 %)
123.255.0.0/16 is seen by 64 out of 73 ASes (87 %)
193.0.0.0/21 is seen by 59 out of 73 ASes (80 %)

Details

Column Descriptions: AS Number - autonomous system numbers seen anywhere in a path to any of the prefixes; Sees ... - a tick (or 'Y' if viewing this without graphics) indicates that we see the specified prefix with this AS somewhere in the AS Path; Peers ... - a tick here indicates that this AS is seen as an immediate neighbour of the AS announcing the specified prefix.

AS NumberSees 121.50.0.0 /21Sees 121.100.0.0 /20Sees 121.200.0.0 /19Sees 121.255.0.0 /16Sees 122.0.0.0 /24Sees 122.50.0.0 /21Sees 122.100.0.0 /20Sees 122.200.0.0 /19Sees 122.255.0.0 /16Sees 123.0.0.0 /24Sees 123.50.0.0 /21Sees 123.100.0.0 /20Sees 123.200.0.0 /19Sees 123.255.0.0 /16Sees 193.0.0.0 /21Sees 84.205.83.0 /24|Peers 121.50.0.0 /21Peers 121.100.0.0 /20Peers 121.200.0.0 /19Peers 121.255.0.0 /16Peers 122.0.0.0 /24Peers 122.50.0.0 /21Peers 122.100.0.0 /20Peers 122.200.0.0 /19Peers 122.255.0.0 /16Peers 123.0.0.0 /24Peers 123.50.0.0 /21Peers 123.100.0.0 /20Peers 123.200.0.0 /19Peers 123.255.0.0 /16Peers 193.0.0.0 /21Peers 84.205.83.0 /24
  174YYYYYYYYYYYYYYYY|                
  286YYYYYYYYYYYYYYYY|              Y 
  513YYYYYYYYYYYYYYYY|                
  559YYYYYYYYYYYYYYYY|                
  701NNNNNNNNNNNNNNYN|                
 1103YYYYYYYYYYYYYYYY|              Y 
 1221YYYYYYYYYYYYYYYY|                
 1273NNNNNNNNNNNNNNYN|                
 1853YYYYYYYYYYYYYYYY|                
 2118NNNNNNNNNNNNNNNY|                
 2497YYYYYYYYYYYYYYYY|                
 2516YYYYYYYYYYYYYYNY|                
 2857YYYYYYYYYYYYYYYY|                
 2914YYYYYYYYYYYYYYYN|YYYYYYYYYYYYYY  
 3257YYYYYYYYYYYYYYYN|              Y 
 3333YYYYYYYYYYYYYYYY|                
 3356YYYYYYYYYYYYYYYY|YYYYYYYYYYYYYYY 
 3549YYYYYYYYYYYYYYYY|                
 3741YYYYYYYYYYYYYYYY|                
 4230NNNNNNNNNNNNNNYN|                
 4608YYYYYYYYYYYYYYYY|                
 4637YYYYYYYYYYYYYYYY|                
 4777YYYYYYYYYYYYYYYY|                
 5392YYYYYYYYYYYYYYYY|                
 5511YYYYYYYYYYYYYYYY|                
 6067YYYYYYYYYYYYYYYY|                
 6140YYYYYYYYYYYYYYYY|                
 6320NNNNNNNNNNNNNNYN|              Y 
 6453YYYYYYYYYYYYYYYY|YYYYYYYYYYYYYY Y
 6461NNNNNNNNNNNNNNYY|                
 6706YYYYYYYYYYYYYYNN|                
 6762YYYYYYYYYYYYYYYY|YYYYYYYYYYYYYYYY
 6881YYYYYYYYYYYYYYYY|                
 7018YYYYYYYYYYYYYYYY|                
 7575YYYYYYYYYYYYYYYY|                
 8167YYYYYYYYYYYYYYNY|                
 8195NNNNNNNNNNNNNNNY|                
 8210YYYYYYYYYYYYYYYN|              Y 
 8342YYYYYYYYYYYYYYYY|                
 8419YYYYYYYYYYYYYYYY|                
 8434YYYYYYYYYYYYYYYY|                
 8447YYYYYYYYYYYYYYYY|                
 8468YYYYYYYYYYYYYYYY|                
 8763YYYYYYYYYYYYYYYY|                
 8820YYYYYYYYYYYYYYYY|                
 8928YYYYYYYYYYYYYYYY|                
 9009YYYYYYYYYYYYYYNY|                
 9080NNNNNNNNNNNNNNYN|                
10764NNNNNNNNNNNNNNNY|                
11537YYYYYYYYYYYYYYNY|                
12350YYYYYYYYYYYYYYYY|                
12654YYYYYYYYYYYYYYNY|                
12779YYYYYYYYYYYYYYYY|                
12793YYYYYYYYYYYYYYYY|                
12859NNNNNNNNNNNNNNYN|              Y 
12956NNNNNNNNNNNNNNYY|               Y
12976NNNNNNNNNNNNNNNY|                
13030YYYYYYYYYYYYYYYY|              Y 
13237YYYYYYYYYYYYYYYY|              Y 
13645YYYYYYYYYYYYYYYY|                
15772YYYYYYYYYYYYYYYY|                
15837YYYYYYYYYYYYYYYY|                
16034YYYYYYYYYYYYYYYY|                
16150NNNNNNNNNNNNNNNY|                
16186YYYYYYYYYYYYYYYY|                
16215YYYYYYYYYYYYYYYY|                
16735NNNNNNNNNNNNNNYY|                
19151YYYYYYYYYYYYYYNN|                
20483NNNNNNNNNNNNNNNY|                
20485YYYYYYYYYYYYYYYY|                
20562YYYYYYYYYYYYYYNY|YYYYYYYYYYYYYY Y
20640YYYYYYYYYYYYYYYY|YYYYYYYYYYYYYY  
20932YYYYYYYYYYYYYYYY|YYYYYYYYYYYYYYYY
20965YYYYYYYYYYYYYYYY|                
22548YYYYYYYYYYYYYYYY|                
22691YYYYYYYYYYYYYYYY|                
25232YYYYYYYYYYYYYYNY|YYYYYYYYYYYYYY Y
25512YYYYYYYYYYYYYYYN|                
25560YYYYYYYYYYYYYYYY|                
25577YYYYYYYYYYYYYYNY|                
27664YYYYYYYYYYYYYYYY|                
29686NNNNNNNNNNNNNNYN|              Y 
30844YYYYYYYYYYYYYYYY|                
31283YYYYYYYYYYYYYYYY|                
34225YYYYYYYYYYYYYYYY|                
39202YYYYYYYYYYYYYYYY|                

Some Explanations...

Not seeing the RIPE NCC's prefix 193.0.0.0/21 is probably caused by seeing one of the other prefixes from a peer which does not provide the RIS with a full feed.

Seeing the /16 but not the /21 in the new allocations is probably caused by incorrect prefix length based filtering somewhere along the line.

Seeing the newly allocated prefixes but not the 195.80.239.0/24 prefix is probably caused by filtering based on the RIR's minimum allocation size somewhere.

How these statistics were gathered

For each of the prefixes (121.50.0.0/21 121.100.0.0/20 121.200.0.0/19 121.255.0.0/16 122.0.0.0/24 122.50.0.0/21 122.100.0.0/20 122.200.0.0/19 122.255.0.0/16 123.0.0.0/24 123.50.0.0/21 123.100.0.0/20 123.200.0.0/19 123.255.0.0/16 193.0.0.0/21 84.205.83.0/24), all RIB entries and Updates for a single day were extracted from the RIS database and from this a list of all AS Paths seen for each prefix was generated. We class an AS as "seeing" one of th